Railway crossing



Jan. 14, 1930. D. c. MULVIHILL RAILWAY CROSSING 2 Sheets-Sheet 1 Filed Nov. 21, 1928 Jan. 14, 1930. D. c. MULVIHILL RAILWAY CROSSING Filed Nov. 21 1928 2y Sheets-Sheet; 2

vertical movement by the balls of said rails.

In assembling the crossing after the supplemental rail has been placed in position, the crossing or plate units 14 are slid in from either or both ends of'the supplemental rail 18 as will be readily understood from an inspection of the drawing. The units being 1 duplicates of each other, the plate members will be in alinement to provide a smooth crossing. The units are preferably in end to end contact with each other when the crossing is assembled and are held from moving along the rails by any suitable means.

In the form of construction shown, an end member 25 is employed for this purpose at each end of the crossing. This member has a flange or horizontal portion which is adapted to be attached to the outer end 26 of the outermost plate 140 as by bolts 27hr the like. 7 It the running rails at each sideof the track.

Each of'the rails 31 may be placed at the inner margin of the concrete orother road bed material of the highway 32. A-plurality of plate units 33 similar to the plate units 14,

except 7 that they are not provided with grooves ordepressions, are employed. Each fied form of construction adapting appli unit comprises the plate34 and supports 35 a, cast integral therewith and extending beyondthe side edges thereof for engaging the flanges 36. and 17 beneath the'balls 37' and of the supplemental and running rails, as in the previous construction. 7

In Flg. 6 of the drawmgis shown amodlcants invention to railways employing. s1gnal system. This form of construction differs from that previously described in that the supplemental platesupporting element 40 comprises 'a pair 0f intermediate or supple-- mental rails 38 and 39 spaceda short distance apart and interposed between the running rails 10, 10. These rails are, separated a suflieient distance to insure that theirfianges 41 and 42 are not in contact with each other. A plurality of block units 43, preferablyof the same length as the plate units, are inserted between the rails 38 and 39. .Eacli block unit 43 has its upper portion reduced as at 451topassbetween the balls of the rails 38 and39, the base portion of theblock being adapted to rest on the flanges 41 and 42 beneath the balls of said rails; V 1 Theblock units 43 may be made from any suitable insulated material, as or 'the like. Plate units 44 having supporting'memhere 46 extending 'laterally'beyondthe side edges of the plates for-engaginginthe-chan+ 1 in th pp e enta pla e. su p n plates.

element 40 and the running rails, are employed to form the crossing, the same as in the previous construction. Each plateis provided with the depression 47 along one side edge for providing clearance for the car wheel flanges and is also provided with a plurality of the supports 46, the projecting ends of which engage in the channels ofthe running and supplemental rails in the manner disclosed above. a

The block units 43 and the plate units 44 are inserted and removed in the same manner as the plate units 14 described above. The end block unitsare adapted to be anchored in any suitable manner to the ties or road bed.

The construction shown in Fig. 6 isintend? ed to be used to insulate the running rails fromeachother where a signal system is employed. Instead of employing the arrange ment shown in Fig. 6, satisfactory results may be obtained by employing insulating ma terial between the-plates 14 and the running rails for insulating said rails from said In Figs. 7 and 8 is shown a modified form of end plate units and anchoring device.

In this form of construction the, end plate units 51 whichcorrespond to the end .plate units 140, see Fig. 1, are provided with downwardly and outwardly extending flanges 52 to which may be connected as by means of rivets or the like attaching strips 53 which have their outer ends rigidly attached to the ties asby means of spikes or the like 54.

It is thought from the foregoing taken in connection with the accompanying drawings that'the construction and operation of my device will be apparent to those skilled in the 1 art, and that various changes in size, shape, proportion and details of constructionmay be made without departingfrom the spirit and scope of the appended claims.

I claim as :my invention:

1. In a railway crossing, a pair of running rails, a supplemental rail between saidrunning rails, a plurality of plate units between certain of said rails, each unit comprising a plate having a depression at one side edge thereof for providing clearance for the flange of a car wheel, anda plurality of supports extending laterally beyond the side; edges of said plate for engaging the flanges'of said rails beneath the ballsthereof for supporting said plates in the plane of said balls and for preventing the removal of said plates vertically. f

2. Ina railway crossing, a pair of running rails, supplemental plate retaining means between said rails, said means comprising a pair of conventional rallway rails spaced said rails and slidable on the sametsaid block V apart, a block of insulating material between 1 having lateral extensions for engaging between the balls and "flanges of said ralls, a plurality of plate units between each. ofsaid running rails and said retaining means, a plurality of plate units, a plurality of supports integral with each unit and extending beyond the side edges thereof for engaging in the channels of said running rails and said means, for forming a crossing, and means for anchoring the end units of said crossing.

3. In a railway crossing, a pair of track rails, the ball and flanges of each rail forming a channel at each side thereof, a plate retaining element between said rails, said element comprising a pair of conventional railway rails spaced apart, a block of insulating material between said rails and slidable on the same, said block having lateral extensions for engaging between the balls and flanges of said rails, a plurality of plate units adapted to engage the channels of said track rails and said plate retaining element at each side thereof, and means for anchoring the end plates from movement longitudinally of said tracks.

In testimony whereof I afiix my signature DANIEL C. MULVIHILL. 

